CMakeLists.txt

cmake_minimum_required(VERSION 3.20)

# Project name and version
project(MyProject VERSION 1.0.0 LANGUAGES CXX)

# --- FIX 1: Suppress download warning (timestamp) ---
if(POLICY CMP0135)
    cmake_policy(SET CMP0135 NEW)
endif()

# --- Coverage Option ---
option(ENABLE_COVERAGE "Activate Clang Source-based Code Coverage" OFF)
if(ENABLE_COVERAGE)
    add_compile_options(-fprofile-instr-generate -fcoverage-mapping)
    add_link_options(-fprofile-instr-generate -fcoverage-mapping)
endif()

# --- Linting: Clang-Tidy ---
find_program(CLANG_TIDY_EXE NAMES "clang-tidy")
if(CLANG_TIDY_EXE)
    message(STATUS "Clang-Tidy found: ${CLANG_TIDY_EXE}")
    set(CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_EXE}")
else()
    message(WARNING "Clang-Tidy not found! Linting is disabled.")
endif()

# --- Testing Setup ---
enable_testing()

# --- 1. Configuration & C++ Standard ---
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

option(BUILD_TESTS "Build Unit Tests" ON)

# --- 2. Compiler Warnings & Sanitizers ---
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
    add_compile_options(
        -Wall -Wextra -Wpedantic
        -Wconversion -Wsign-conversion
        -Wshadow
    )
    if(CMAKE_BUILD_TYPE MATCHES "Debug")
        add_compile_options(-fsanitize=address,undefined -fno-omit-frame-pointer)
        add_link_options(-fsanitize=address,undefined)
    endif()
endif()

# --- 3. Load Dependencies ---
# HERE the include of your external file happens
# CMAKE_CURRENT_LIST_DIR ensures that the folder is found relative to CMakeLists.txt
include("${CMAKE_CURRENT_LIST_DIR}/Dependencies.cmake")

# --- 4. Collect Source Code ---
file(GLOB_RECURSE APP_SOURCES "src/cpp/*.cpp")
file(GLOB_RECURSE APP_HEADERS "src/include/*.hpp" "src/include/*.h")
list(FILTER APP_SOURCES EXCLUDE REGEX ".*main\\.cpp$")

# --- 5. Main Executable ---
add_executable(${PROJECT_NAME} src/cpp/main.cpp ${APP_SOURCES} ${APP_HEADERS})

target_include_directories(${PROJECT_NAME} PRIVATE src/include)

# Link libraries that were collected in Dependencies.cmake
if(EXTERNAL_LIBS)
    target_link_libraries(${PROJECT_NAME} PRIVATE ${EXTERNAL_LIBS})
endif()

# --- 6. Tests (GoogleTest Integration) ---
if(BUILD_TESTS)
    # We keep GTest here as it is specific to tests.
    # We could also move it out, but GTest is often handled separately.
    include(FetchContent)
    FetchContent_Declare(
        googletest
        URL https://github.com/google/googletest/archive/refs/tags/v1.14.0.zip
    )
    set(INSTALL_GTEST OFF)
    FetchContent_MakeAvailable(googletest)

    file(GLOB_RECURSE TEST_SOURCES "src/tests/*.cpp")
   
    add_executable(unit_tests ${TEST_SOURCES} ${APP_SOURCES})
    target_include_directories(unit_tests PRIVATE src/include)
    target_link_libraries(unit_tests PRIVATE GTest::gtest_main)

    include(GoogleTest)
    gtest_discover_tests(unit_tests)
endif()

# --- 7. Installation & Packaging ---
install(TARGETS ${PROJECT_NAME} DESTINATION bin)
# install(FILES config.json DESTINATION bin) # Optional

set(CPACK_PACKAGE_VENDOR "YourName")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "My cool C++ Project")
set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")

if(WIN32)
    set(CPACK_GENERATOR "ZIP;NSIS") 
elseif(APPLE)
    set(CPACK_GENERATOR "DragNDrop")
else()
    # Relevant for your Linux setup (RPM for Fedora, TGZ often used on Arch)
    set(CPACK_GENERATOR "DEB;RPM;TGZ")
endif()

set(CPACK_DEBIAN_PACKAGE_MAINTAINER "YourName <your.email@example.com>")
set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
set(CPACK_RPM_PACKAGE_LICENSE "MIT")

include(CPack)